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2026-08-08bpf: Rename 'early' BTF checking as a preparation phaseKumar Kartikeya Dwivedi1-7/+7
BTF processing is split around subprogram discovery. The first phase gets program BTF and imports func_info because a BTF-tagged exception callback may not be referenced by any instruction. Subprogram discovery needs this metadata to find it. The later phase validates func_info and line_info against the complete subprogram table and applies CO-RE relocations. This split breaks a real dependency cycle rather than merely running the same checks early. Rename bpf_check_btf_info_early() and check_btf_func_early() to preparation names that reflect this role. Add short call-site comments to make the two phases and their responsibilities clear. No functional change is intended. Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> Reviewed-by: Amery Hung <ameryhung@gmail.com> Link: https://patch.msgid.link/20260808003938.3486067-2-memxor@gmail.com Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
2026-04-12bpf: Move BTF checking logic into check_btf.cAlexei Starovoitov1-0/+463
BTF validation logic is independent from the main verifier. Move it into check_btf.c Acked-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/r/20260412152936.54262-7-alexei.starovoitov@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>